Leather-boarding machine



(No Model.)

J W VAUGHN LEATEEE EOAEDING MACHINE. y

Patented Jan. 6,1891.

...hw M\ ,n M A ME H NH. 1 E E I E .44| s 4 Q |l JWN Q l ||||I Il a UNITED VSTATES PATENT OFFICE `JOSEPH W. VAUGHN, OF SALEM, MASSACHUSETTS, ASSIGNOR TO THE VAUGHN MOROCCO MACHINE COMPANY, OE PORTLAND, MAINE.

LEATHER-BOARDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 444,172, dated January 6, 1891.

Application filed June 11, 1890 Serial No. 355,049. (No model.)

To all whom, it may concern.: with or with other suitable substances. Di-

fe n knovl n that I, JOSEPH IV. VAUGHN, of agonally arranged braces or arms p connect Salem, In the county of Essex, State of Massathe ends of said shell with the sliding rods h. chusetts, have invented certain new and use- A stiff coiled spring :c is mounted on each 55 ful Improvements in Leather-Boarding Masliding rod between the front block t' and the c hines, of which the following is a descripadjacent brace p, said springs acting expantion sufficiently full, clear, and exact to ensively to force the shell away from the drum. able any person skilled in the art or science The upper edge of the shell is grooved longito which said invention appertains to Vmake tudinally at q, and a clamp r is pivoted to the 6o ro and use the same, reference being had to the top of the shell to enter said groove, the puraccornpanying drawings forming part of this4 pose of said clamp being to secure an edge of speclfication, in whichthe skin to the shell. A horizontal rod t is Figurelis an end elevation of my improved secured to the upper edge of the shell. A boarding-machine; Fig. 2, a front elevation hand-lever o, pivoted by means of a rod w in 65 i 5 of the same, and Fig. 3 a sectional elevation the standards, has one arm secured to said taken on the end opposite that shown in Fig. rod t. A short lever y on the pivot-rod w 1 to illustrate the reversing mechanism. connects it with the shell-rod t, the purpose of Like letters and figures of reference indisaid levers being to throw the upper edge of I 5 cate corresponding parts in the different figthe shell away from the drum sufficiently to 7o zo ures of the drawings. insert the hide. A large gear C is mounted Mynventionrelates,especially,to machines on the drum-shaft. A horizontal shaft is for boarding leather; and it consists in cerjournaled in the top of the standards and tain novel features, hereinafter fully set forth bears a driving-pulley. A gear 1G is mounted and claimed, the object being to produce a on said shaft. A sector 17 is mounted loosely 75 simpler, cheaper, and more effective device of on said shaft and may be swung vertically by this character than is now in ordinary use. means of a hand-rod 18, said rod being fitted The nature and operation of the improveto enter a notched rail on the standard to hold ment will be readily understood by all conthe sectorin position. An intermediate gear versant with such matters from the following 1 9 is journaled on the sector and meshes with 8o explanation: the gear 1.6 and main gear C, whereby the In the drawings, Adesignates the end pieces drum may be caused to rotate in one direcor standards of the machine. Ahorizontallytion. A small gearLO is journaled on thesector arranged cylinder or drumBis journaled een-.4 and meshes with the gear 18 thereon. By trally in said standards by means of a shaft moving thesector so that said gear 2O willmesh 8 5 b. A horizontal armcl is formed centrally on with the main gear C and the gear 18 be disthe outer face of each standard, and is proengaged therefrom the drum may be rotated vided with laterally-projecting lugs f. A in the opposite direction. block if is disposed between each set of lugs In the use of my improvement thc skin to f, and is held in position by guide -spindles be boarded is secured by one edge to the shell 9o g, turned therein and passing vertically and in the cla-mp r. The shell is elevated or loosely through openings in said lugs. In thrown backward slightly by means of the each set of blocksfi ahorizontal rod h is fitted lever tu to enable'the skin to be folded under to slide longitudinally. Chains j, respectively the edge of said shell, the body of the skin secured to the forward ends of the rods h, lying on the front of thedrum. The drum 9: pass over pulleys m on the arms cl and are rotating from right. to left, as viewed in Fig. fastened to a foot-treadle 7c, mounted on said 1, the skin is carried thereby under the shell. standards. A shell D, approximately semi- The operator depressing the treadle 7c draws circular in end elevation, partially encircles forward the sliding rods 7L against the pressthe drum B and is secured to the rear ends of ure of the springs x. The arms or braces fp, 1o: 5o the rods 71,. The cylinderB is covered or faced being secured to said rods and to the shell, with cork, and the shell D may be lined theredraw said shell tightly and evenly against the drum, which compresses the skin firmly beequally as effective, is inne-l1 more rapid and tween them. The cork facing,` prevents the shin from slipping, and the eii'ect thereon is practically the same as the hand operation in common use. 'hen the shin is thus passed its full length between the drum and shell, thc operator, by depressing' the lever 1S and throwing the gear 0 into engagement with the main `gear C, reverses the movement of the drum, the skin being returncdin its folded condition therewith. Springs 25, disposed around the guide-screws g, between the lugs -fand blocks i', cushion said blocks and permit vertical play of the sliding rods 7i.

I do not confine myself to the means shown Vfor reciprocating the drinn, as any mechanism suitable for the purpose may be employed.

Nor do l confine myselfl to using the treadle mechanisin for forcing the shellI into, engagement with, the drum, als a system of levers will effect the same result. The drum may also lire made stationary and the shell readily fitted to reciprocate through an are over the drum. Said drn m may not of necessity be cylindrical in form, as a partial drum or one segmental in end elevation may be employed,thc size of the skins seldom requiring a complete revolution ol' the drinn or shell to work them. It will be understood that the same effect may be produced on the leather by passing;` it, in the manner described, between ailat bed and a reciprocating platen; but by employing my rotary drum and shell the operation, while i i? l the machine occupies a much less floor-space.

Having; thus explained my invention, what I claim iS-ll. In a leather-:boarding machine, the combination of two end standards, a cylinder journaled therein, rods sliding in supports on said standards, an arc-shaped adjustable shelli adaptedto operate in conjunction with the periphery of said cylinder, provided with arms at its ends having eyes through which said rods pass, means for-oscillating said cyl` inder, means for sliding the shell on said rods toward the cylinder, and means for clamping' the leather, substantially as set forth.

In, a leather-boarding machine, the coinbination of two end standards, a drum jonrnaled therein, means for oscillating said drinn, vertical guidespindles supported in said end standards, blocks on said spindles, horizontai rods supported in said blocks, springs on said' guide-spindles for cushioning said blocks',

adapted to operate in conjunction njxitlvifgthe periphery of said cylinder, provided"\vith arms supported by said rods, springsfor throwing` out the shell, means for sliding the shell, on rods toward the cylinder, and means for. clamping the skins, substantially as sctforth, 

